Cotton tramper



J. T. BEATY COTTON TRAMPER Sept. 30, 1924. Lw

Filed April 9 1924 gwuenfoz 67H0: Het,

Sept; 30, 1924. Lw

J. T. BEATY COTTON TRAMPER Filed April 9, 1924 6 Sheets-Sheet 2 Sept.30, 1924. www5 J. T. BEATY Y COTTON TRAMPEH Filed April 9, 1924 6Sheets-Shes?t 3 Sem. 3Q, A924.

J. T. BEATY COTTON TRAMPER Filed April 9 1924 6 Sheets-Sheet 4 @Mssg1.1%

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Patented Sept. 3G), 192% UNET SFA raient Meer cornice@ JAMES T. BEATY,OF CHARLOTTE, NORTH CARGLTNA, ASSIGNOR T LTDDELL @0M- PANY, 0FCHARLOTTE, NORTH CAROLINA, A CORFOBATIQN 0F NORTH CALMA..

COTTON TRIER.

Application med April 9, 1924. Serial Ito. 705,341.1..

To all who-m z't may concern:

Be itvknown that I, JAMEs T. BEATS?, a citizen of the United States ofAmerica residing at Charlotte, in the county of Mecklenburg and State ofNorth Carolina, have invented certain new and useful lmprovements inCotton Trampers, of which the following is a specification.

My invention relates to a press of the kind usually referred to as anautomatic cotton tramper and includes automatic operating and timingvalves. j

An object of my invention is the construction of an automatic tramperwhich is simple in construction, economical to build and eliicient inoperation.

A further object is the construction of a valve by which the movement ofthe tramper head lin the press box is operated and regir lated and whichmay be operated manually or automatically.

A further Objectis the construction of a timing valve by means of whichthe reciprocation of the tramper head in the press box may be regulatedas to the number of strokes and as to the time between the strokeseither while the apparatus is in Operation or while it is not inoperation.

Among the further objects of my invention are, the novel construction ofthe tramper weight, the construction of the valve to eliminate wiredrawing or the cutting action due to restricted opening, the

means used to restrict the liquid outlet openthe tramper weight toprevent shock to the parts of the apparatus on the downward movement ofthe weight.

With these and further objects in view, one embodiment of my inventionis shown in the accompanying drawings in which:-

Figure 1 is a side elevation partly in seetion showing myimproved'device;

Figure 2 is a vertical section through the operating and timing valves;

Figure 3 is an end elevation of the operating and timing valves with theoperating valve in open position;

Figure 4 is a section on lines d--d of Figure 2;

Figure 5 is a section on lines 54-5 of Figure 2;

Figure 6 is a fragmentary side elevation of the timing valve partly insection;

-Figure 20; ing and the means provided for cushioning Figure 7 is asection on lines 7--7 of Figure 6;

Figure 8 is a top plan view of the ball valve used in the timing valve,the casing and piston being omitted;

Figure 9 is a section on lines 9 9 of Figure 1;

Figure 10 is an end elevation of the timing and operating valves withthe operating va ve in neutral position;

Figure 11 is the end elevation of the timing and operating valves withthe operating valve in closed position;

Figure 12 is a plan view of a shaft having levers attached to each endthereof;

Figure 13 is a sectionl on line 13-13 of Figure 14 showing the valvetrip;

Figure l14 is a section on lines ld-lt of Figure 13;

Figure 15 is an end elevation of the yokel lever;

Figure 1G is an elevation `of this lever turned 90 degrees from theposition shown in Figure 15;

Figure 17 is a section on lines 17-17 of Fi re 15;

`igure 18 is a section on lines 18-18 of Fi re 1 Figure, 19 is a sectionon lines 19-19 or Fi ure 18;

igure 20 is a top plan view of the head of the cylinder casing; l

Figure 21 is a section on lines 21-21 of Figure 22 is a side elevationof the cam lever;

Figure 23 is a top plan thereof;

Figure 24: is a side view of the operatin sheaves with the operatingchains omitt and Figure 25 is a section on lines 25-25 of Figure 1.

The parts of my mechanism may for convenience be designated as followsA-*The tramper head, cylnder head, piston, weight and ltheir connectmgparts;

B-The operating valve and parts thereof, and

C-The timing valve and parts thereof.

General oonstructm.

The general construction of my device is indicated in Figures 1 and 2:Pressure operating means may be supplied by any A be water,

well-known device such as a pump which I have not shown. l TheYplressure medium may oil, or any ot er analogous liquid. The tramperhead in Figure l is in that position occupied before it starts itsdownward movement into the conventional press box, not shown. Theoperating valve is indicated in Figures 1 and 2 as open and the timingmechanism weight is shown in these figures in its lower position.

Tmmper construction.. The tramper head 1 has attached thereto 'a piston2 which passes through the cylinder head 3 and fits loosely in .pistoncasing 4 secured to the cylinder head. Attached to the tramper head onopposite sides of the piston are yguide rods 5 and 6 which extend upwardthrough the cylinder head parallel vwith the pistonr casingapproximately the height thereof. Attached to the upper partsof each aretwo chains 7 which extend over two sheaves 8 journaled in an extension 9of the head 10 of the piston casing having the other 4end of each chainattached as by screw pointed extensions 7a of said chains to a weight 11through which the guide rods'pass. The openings'through this weightpermit the rods to move freely through it. The cylinder head hasconnected therewith a pipe 12 leading from the pressure pump, not shown.Liquid forced intothe cylinder head willpass to the top of the pistonhead due totheloose fit ofV the piston in the cylinder casing and causeit to descend. This descent will continue until the weights reach thehighest point or until the trip block 13 attached to the guide rod 6pushes downward the trip rod 14 one end of which encireles the guide rod6 and the other end of which abuts the trip lever 15 (Figure 3)./ Thetrip lever (Figure clamped to the shaft 16 journaled in brackets 17through the arm 18 operates a yoke to open the operating valve. Theopeningof the valve is arranged to take place when the Weight has"reached'its upward limit of travel and the tramp'en head its lowerlimit. It is evident that whervthe valve is opened the pump pressurewillx be relieved and the liquid will thenl How through an outlet pipeto which the operating valve is connected back to a tank, not shown.This flow of the liquid will continue until the valve is closed.

The guide rods mayhave springs 19 between the tramper head and thecylinder' head in orderthat the u ward movement of the head maybe stoppewithout shock.

The packing of the tramper piston as shown clearly in Figure 9 comprisesa U- shaped washer 20 of suitable material such as leather placed aroundthe piston in an annular groove'20; a ring 21y of suitable material suhas metal placed in an annular or crushing it; a packing 22 of suitablematerial such as rawhide below said ring and a gland 23 to hold thepacking in positlon,

this gland being attached `to the cylinder head in any suitable way asby studs 23a.

The ends of the arms of the U-shapetl'.

leather washer arel beveled from the inside outward forming sharpenededges to press against both the piston and the wall of the annulargroove. Anf,y excess of oil which flows down the piston is caught by thearms of the leather washer which direct it into the opening between thearms pressing the arms outward. The metal ring may be a right-angledtrianglein cross section. The soft-packing may be trapezoidal in crosssection. This packing is very elicient and the arrangement of the partspermits any worn out or injured part to be readily replaced. A

The upper end of the tramper piston may have the construction shown inFigure 25 where ribs 24, four in number, are made on the* head 25 of thepiston in order that liquid may readily reach the top of the casing andthat the piston may also be held straight in the casin A small pipe 4which runsfrom an opening through the headof the piston casing to thepipe leadingto the cylinder head allows the escape of air from the `topof the piston casing.

The construction of the weight 11 is best shown in Figures 18 and 19.yThis weight consists of two parts connected together by pins 26 havingcotter pins 27 in 'the ends thereof. Each of the parts of my weight hasa cavity 28 therein and an ear 29 of -lesser thickness than the width ofthe cavity. The connecting pins pass through the ears in the respectiveparts. The two parts, therefore, may move relative to each other thedistance indicated by the width of the cavity less the thickness oftheear. This construction automatically keeps both chains the same tensionand also prevents binding of the weight on the cylinder casing.

Operating oche..

The construction of the operating valve is best shown in Figure 2.' InFigures 2l and 3 it is shown in open position and in Figure 11 in closedposition.

Connected to the pressure pump pipe 12 is a pipe 30 having thereof atwo-piece hollow valve casing 31 connected together in any suitablemanner as by cap screws 3:1. In this casing, positioned to operate toclose the openingl from the ipe through the casing, is a valve plug 32 wich has a roller 33 m'ounted in the end thereof attached to the lowerend by means of a pin 34 extendin through the end of the plug, the endsof t e pin extending a short distance beyond the surface of the plug.Mounted in the end of the casing by means of a cam pin 35 is a cam lever36 having as a part thereof a cam 37 by means of which the plug isplaced in a closed position. This cam lever has a head 38 on the endthereof cushioned as by a rubber tip 38a to lessen the shock when themovement of the lever is stopped as shown in Figure 3 when the valve isclosed. Pivoted to the cam pin is a yoke 39 (see Figures 2, 15, 16, and17) to which is attached a trip rod 40 (Figure 3), the upper end ofwhich is screw-threaded in a rotating pinv 41 inserted in the end of thearm 18. This arrangement of the trip rod makes it adjustable as toheight. The yoke lever 39 has on one arm thereof a removable weight 4.2,the other arm 43 thereof being pivotally attached to the trip rod, asabove stated. Attached to the stem of the yoke is a pawlengaging arm 44having a pawl-engaging recess 45 near the end thereof.

It will be evident that the valve plug may be manually operated by thecam lever arm l and that it will be operated automatically by themovement of the tramper weight through the connections which have. beendescribed. The valve .plug will normally f drop to open position by theforce of gravity and pressure of fluid-when the cam 37 is removed fromcontact with the end thereof; but in order that its action may bepositive and insure instant full opening, two thin steel straps 46 areconnected with the ends of the roller pin and the cam in order to pullthe valve from its seat to full open when the cam lever is in theposition shown in Figure 3. One end of each strap is placed over'the endof the roller pin and the other is fastened tothe cam by any suitablemeans as a pin 46a. `It will be noted that the substantiallysemi-circular part of the yoke lever as shown in Figure 15 has ashoulder 47 (see Figures 15 and 17) which comes in contact with thecurved end portion of the cam lever after the yoke weight has reached avertical position (see Figures 3, 10, and 11) This contact causes theweight to drop its full distance snapping the valve. into open positionas shown in Figure 2 and preventing Wire cutting by the instantaneousfull opening of the valve.

Timing val/ve.

lstrokes. This valve consists of a casing 48 mounted on a hollowconnect-ing head 49 having a rein-forcing ring 50 placed on said Vheadat the base of the casing and attached to the head in any suitablemanner as by screws 50a. The ead is connected to the operating valvecasing in any suitable way as by a pipe joint 51 and has connected to itan outlet pipe 52 leading to a tank or other receptacle, not shown. Theopening between the head and the outlet pipe is restricted in anydesired manner as by the use of a Venturi tube 53. There is an opening54 from the hollow head in which is a ball valve 55l which normallycloses the opening from the hollow casing with the eX- ception of thesmall side openings 56, four being shown (Figure 8). These openingsallow the liquid in the hollow head to flow out around the ball as soon`as the ball has been raised oit' its seat by means of a screwthreadedstem 57 which may be operated in any suitable way as by a hand wheel 58.This stem has suitable packing 59 and a covering nut 60. Within thecasing is a piston 61 having a hollow piston rod 62 attached thereto.This rod extends upward and through the head 63 which is screwthreadedinto the casing having suitable packing 64 and a covering nut 65.Attached to the top of the piston is a saddle 66 having supporting rods67 attached thereto. The top of the piston may be covered by a screw cap68. The lower ends of the supporting rods are screw threaded to a weight69 which slides freely on the outside of the valve casing. An opening 70is provided from the topy of the casing'from which a pipe 71. leads tothe outlet pipe, the entrance to said outlet pipe being made beyond therestricted part of said outlet. The obvious purpose of this pipe is tocarry off any liquid which may get above the piston 61 and to permit airto escape as the piston moves up. An opening`62a into the piston rodacts as an auxiliary outlet for oil or air. The pipe 71 acts as a guidefor the timing valve weight as shown clearly in Figures 4 and 5.

Attached to the timing valve weight 69 (see Figures 3, 10, 1,1, and 13),as b v a curved part 72, is a slide rod 73 having a tripping pawl 74which, as the weight de scends, engages the arm 44 at the recess 45 andpushes the yoke lever downward, raising the weight. attached theretountil it passes just beyond the position shown in Figure 10, when theweight Jfalls instantly' `by its own force, closing the operating valve.The closing of the valve' results, as will be evident, from the ca'm 37acting on the roller 33 which is mounted in the end of the valve plug32. This slide rod reciprocates in a substantially U-shaped guide 75having guide points 7 5a at the top thereof.

The parts of the tramper may be supported in any of the usual ways ofsupporting such machinery. The cylinder head may be supported by crossbeams 76. Guide ill) parts ofthe timing valve may be attached to a post77 connected to the cross beams 76 to which beams are also attached thebrackets 17 supporting the rod 16.

Made of operation.

The tramper is put in operation by manu ally closing the valve plug bythrowing' the yoke .lever forward. The liquid from the pressure pumpwill then enter the tramper piston casing, forcing the piston down bypressure or by displacing the piston. This downward movement willcontinueiuntil the trip lug strikes the trip rod and, by downwardmovement thereof through the con-` nections described, causes theoperating valve plug to be opened. As has been pointed out, the valve isopened by the block 18 pushing down the trip rod 14 which presses downthe lever 15. As the lever 15 is pusheddown, the arm 18 is raised,throwing the valve in open position through the rod 40. As soon as thisplug is withdrawn,

the liquid passes freely through the operating valve and back to a tank.Passage of the liquid through the operating and timing valves is aidedby the size of the pipe 12 from the cylinderhead to the point ofconnection with the pipe and the smaller size of that pipe from thepoint of connection to the pump. The tramper weight has reached itsupward limit of travel when the operating valve is opened. As thepressure has been relieved, this weight will descend by force ofgravity, raising the tramper head out of the press box. The rush ofliquid through the operating valve and the opening in the head of thetiming valve causes pressure in this space, due to the restricted areaof the outlet pipe. This pressure willcause the valve ball plug tobecome unseated and the liquid will force upward the timing. valvepiston to its highest point. As soon as the pressure in the timing valvecasy ing has been relieved, theweight begins to descend, the rate atwhich it descends depending on the leakage around the ball'.

This leakage may. be controlled, as has been explained, by means of thehand-operated stem abutting the surface of the ball. The

slide attached to the timing valve weight has a pawl which engages thearm of the l'operating yoke, carrying the yoke weight weight to descendto the point where its del or it may be changed during ,the operation lof the device. f

The construction of the operating valve is such that it both opens andcloses suddenly, or in other Words, 1t may be said it snaps open andsnaps closed. This action of the valve is' due to the describedconstruction which does not cause the valve plug to move until the yokelever weight passes just be` yond the vertical position. When the weightpasses the vertical in either direction the valve either opensj orcloses instantly.

My device is so constructed that it may be used as asemi-"automatictramper without the timing device. When so used the operating valve isclosed manually to begin the downward stroke of the tramper, butautomatically opens on completion ofl .the downward stroke, and the.tramper piston makes the return stroke where it remains until theoperating valve is again closed manually. j

Having described my invention, what I claim as new and desire to protectby LettersPatent is: A

1. In a device of the kind described, the combination of a tramper head,means to operate said head including a valve, and

means to'time the operation of said valve, 1100 said timing meansadapted lto be adjusted to vary the speed of theV operation of thedevice. l

2. Ina device of the kind" described, the

combination of a tramper head, means to operate said head including avalve and means to time the operation of said valve,

said timing means adapted to be adjusted to Y vary its speed while thedevice is in operation and also when not in operation.

` '3. In a device of the kind describedthe combination of a tramperhead, means to operate said head including an vexhaust op-V erated valveand means to regulate the flow of the exhaust'uid to time the operationof said valve.

4. In a deviceof the kind described, the

combination of a tramper head, means to operatesaid head including avalve, means connected with said head to open saidvalve and means -toclose said valve manually.

5. In a device of the kind described, the

combination of a tramper head, means to operate Vsaid head including avalve, means connected with said head to open said valve and means toclose said valve manually, said opening and' closing means being capableof operation at any of the tramper ead up or down.

e. In a device of the kind describd, the

combination of a tramper head, means to optime during the movementvmemset erate said head-includin a valve,i automatic means connected withsaid head to open said valve, automatic means to close said valve andmeans to regulate the time when said automatic opening and closing meanswill act.

7.1n a cotton tramper the combination of a cylinder head, a tremperhead, a piston for said head adapted to be reciprocated in connectionwith said cylinder head, means to supply iuid pressure to said cylinderhead to cause said piston to reciprocate, a valve connected with themeans to supply iiuid pressure, means to operate said valve and timingmechanism for said valve operatively connected thereto, said timingmechanism v being operated when said valve is opened by the supply offluid pressureused to reciprocate the piston when said valve is closed.

8. In a cotton tremper, the combination of a cylinder head, a tramperhead, a piston for said head adapted to reciprocate in connection withsaid cylinder head, means to supply fluid pressure to said cylinder headto cause said iston to reciprocate, a valve connected to t e means tosupply fluid pressure, means to operate said valve comprlsing a weight,a connection between said tramper head and said weight, a valve lever,means on said connection to operate said valve lever, timing mechanismfor -said valve operatively connected thereto, said timing mechanismbeing operated when said valve is open bythe supply of fluid pressureused to operate the piston when said valve is closed.

9. In a eottontramper, the combination of4 a cylinder head, a tramperhead, a piston for said head adapted to be reciprocated in connectionwith said cylinder head, means to supply Ifluid pressure to saidcylinder head to cause said piston to reciprocate, a valve connected tothe means to supply uid pressure, means to operate said valve comprisinga weight, a connection between said tramper head and said weight, avalve lever, means on said connection to operate said valve lever,timing mechanism for said valve operatively connected thereto, saidtiming mechanism being operated when said valve is open by the supply offluid ressure used to operate the piston when saidp valve is closed,

said timing mechanism comprising a hollow head, said hollow head havinga .restricted outlet, said hollow head having a second outlet opened andclosed by a valve, a weight operated by the pressure of the Huid supplyas it passes through the hollow head due to the restricted outlettherefrom, said weight having operating valve closing means thereon.

10. In an apparatus of the kind described,

a tramper operating weight, said weight l comprising two parts, each ofsaid parts havin an opening therein and each of said parts aving auextension therein adapted to extend -into said opening, said openinbeing of greater diameter than the extenslon exf tending therein andmeans to attach said parts together.

In testimony whereof l ,alix my signature.

JS T. BEATY.,

